Ask a doctor - Is there a connection between heartburn and obesity?

Q. Is there a connection between heartburn and obesity?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

Yes, there is a well-established connection between heartburn (acid reflux) and obesity. Obesity is a significant risk factor for the development and exacerbation of heartburn and its more severe form, gastroesophageal reflux disease (GERD). The relationship between obesity and heartburn is primarily due to the following factors:

1. Increased Abdominal Pressure: Excess body weight, particularly when it is concentrated around the abdomen, can increase abdominal pressure. This additional pressure can push on the stomach, causing stomach contents and acid to be forced back into the esophagus more easily. This is especially true when individuals bend over, lie down, or engage in physical activity.

2. Weakening of the Lower Esophageal Sphincter (LES): The lower esophageal sphincter is a ring of muscle that separates the esophagus from the stomach. Obesity can lead to the weakening of the LES, making it more prone to relax inappropriately and allow stomach acid to flow back into the esophagus.

3. Increased Stomach Acid Production: Some research suggests that obesity may lead to increased production of stomach acid, which can further contribute to acid reflux and heartburn.

4. Impact on Digestion: Obesity can affect the rate of digestion, causing food to remain in the stomach for a longer period. This can increase the likelihood of reflux.

5. Hiatal Hernia: Obesity is a risk factor for hiatal hernias, which occur when a portion of the stomach pushes through the diaphragm into the chest cavity. Hiatal hernias can facilitate acid reflux and heartburn.

It's important to note that not all individuals who are overweight or obese will experience heartburn, and not all heartburn is related to obesity. However, there is a clear association between the two, and addressing obesity through weight loss and lifestyle changes can significantly reduce the frequency and severity of heartburn and GERD symptoms.

If you are overweight or obese and experiencing heartburn, it's advisable to consider weight loss as part of your strategy to manage and prevent acid reflux. Consulting with a healthcare professional or a registered dietitian can help you develop a safe and effective weight management plan.